Advertising signs have varied over time, with few remaining popular for long periods. In the mid-20th century, Burma-Shave limericks were a common sight along highways. These signs were created by two brothers who convinced their father to invest in the project. The father had introduced Burma-Shave as a convenient and effective shaving product.

The signs became a notable part of American road travel, with millions of people looking out for them as they traversed the country's roads and highways. The phenomenon of Burma-Shave signs is a notable part of advertising history. Further details about the story behind these signs are available from the source.